Been playing with air temperature sensors on my old Rover - for the fuel injection which is MegaSquirt aftermarket. Which can be programmed for pretty well any sensor.
I want to re-site it, but need to use the old one as a blank to the trunking, and couldn't find an identical one. Although both are meant to be the same electrically - but aren't.
However, here's the point.
If I connect them to my Fluke DVM set to temperature, both read exactly the same - room temperature.
If I measure the resistance, the original is 3K4, the new one 2K0, both at room temperature which the Fluke says is 22.7C on both of them and its own sensor.
MegaSquirt reports ambient correctly with the old sensor but reads approx
8C high with the new one. Not a problem as I can enter the values of the new one in the MS software at a few spot temperatures and it will interpolate the rest.
But I'm curious to know just how the Fluke copes with both without adjustment?